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Filters: Keyword is Spruce-Fir forests and Author is Ciesla, W. M [Clear All Filters]
The Status of the Balsam Woolly Aphid in North Carolina and Tennessee. Asheville, NC: U.S. Forest Service, 1963.
Status of the Balsam Woolly Aphid in the Southern Appalachians - 1966. Asheville, N.C.: U.S. Forest Service, 1967.